Tetra Whisper Power Filters are the best-selling brand of power filters in the U.S. Appropriate for every size aquarium, they provide the three types of filtration that your aquarium needs:
The Tetra Whisper Power Filter contains a hinged lid for improved ergonomics / ease of use, an improved compact aesthetic design, time strip indicators, a convenient top-mounted flow control dial and packaging upgrade. Hang on back HOB power filter for easy installation.
Designed for ease of use, Whisper Power Filters use Bio-Bag filter cartridges for mechanical and chemical filtration. The disposable Bio-Bags remove waste particles, discoloration and odors from aquarium water. Bio-Bags are easy to change, making it easy to maintain clear aquarium water.
Whisper 20: 105 GPH - (7.25"L x 3.5"W x 7"H) - Use Large Bio-Bags
Whisper 30: 145 GPH - (8"L x 4.5"W x 7.25"H) - Use Large Bio-Bags
Whisper 40: 210 GPH - (8"L x 4.5"W x 7.5"H) - Use Large Bio-Bags
Whisper 60: 330 GPH - (13.5"L x 4.5"W x 7.5"H) - Use (2) Large Bio-Bags